It Is True That the Principle of 'Professional Behaviour' in the Code

It is true that the principle of 'professional behaviour' in the Code of Ethics for Professional Accountants:

A) requires a member to avoid any action or omission that may bring discredit to the profession
B) is, in sense, a catch all provision that covers unethical behaviour not included elsewhere in the code
C) covers accountants' behaviour outside their professional role
D) all of the above